feat(character-detail/gallery): 갤러리 추가 및 이미지 목록 연동

- 에셋 추가: ic_new_lock
- 그리드 UI 적용

SodaLive/Sources/Chat/Character/Detail/Gallery/CharacterImageListResponse.swift

@@ -0,0 +1,20 @@
+//
+//  CharacterImageListResponse.swift
+//  SodaLive
+//
+//  Created by klaus on 9/2/25.
+//
+
+struct CharacterImageListResponse: Decodable {
+    let totalCount: Int
+    let ownedCount: Int
+    let items: [CharacterImageListItemResponse]
+}
+
+struct CharacterImageListItemResponse: Decodable {
+    let id: Int
+    let imageUrl: String
+    let isOwned: Bool
+    let imagePriceCan: Int
+    
+}